EP 1046064 A4 20080514 - METHOD OF CREATING COMMON-OFFSET/COMMON-AZIMUTH GATHERS IN 3-D SEISMIC SURVEYS AND METHOD OF CONDUCTING REFLECTION ATTRIBUTE VARIATION ANALYSIS
Title (en)
METHOD OF CREATING COMMON-OFFSET/COMMON-AZIMUTH GATHERS IN 3-D SEISMIC SURVEYS AND METHOD OF CONDUCTING REFLECTION ATTRIBUTE VARIATION ANALYSIS
Title (de)
VERFAHREN ZUR ERZEUGUNG VON GEMEINSAME AUFBREITUNG/AZIMUT-SAMMLUNGEN IN 3-D SEISMISCHEN MESSUNGEN UND VERFAHREN ZUM ANALYSIEREN VON REFLEKTIONSKENNZEICHNEN-VARIATIONEN
Title (fr)
PROCEDE DE CREATION DE COLLECTES A DECALAGE COMMUN/AZIMUT COMMUN DANS DES ETUDES SISMIQUES 3-D ET PROCEDE D'EXECUTION D'UNE ANALYSE DE VARIATION D'ATTRIBUTS DE REFLEXION
Publication
Application
Priority
- US 9814478 W 19980713
- US 97067497 A 19971114
Abstract (en)
[origin: WO9926085A1] Processes are described for providing a data set useful for performing analysis of reflection attribute variation among traces in a window of three-dimensional seismic data, wherein the traces have a reflection point assigned thereto and wherein the traces represent recordings from shot-receiver pairs having various azimuth angles. According to one embodiment, the process comprises: assigning an offset value to a plurality of traces; fitting a substantially conical surface having a major and a minor axis to the data of the traces within the window, wherein: the major axis of the cone represents the azimuth direction having the lowest variation in the reflection attribute, and the minor axis of the cone represents the azimuth direction having the highest variation in the reflection attribute; assigning a coordinate set to the surface, wherein the coordinate set is related to a survey geometry of the data; and comparing the reflection attribute variation as a function of offset and azimuth.
IPC 1-7
IPC 8 full level
G01V 1/28 (2006.01); G01V 1/00 (2006.01); G01V 1/30 (2006.01)
CPC (source: EP NO US)
G01V 1/00 (2013.01 - EP US); G01V 1/28 (2013.01 - NO); G01V 1/301 (2013.01 - EP NO US)
Citation (search report)
- [Y] US 5430689 A 19950704 - RIGSBY PETER G [US], et al
- [Y] EP 0541265 A2 19930512 - GECO AS [NO]
- [A] US 5029145 A 19910702 - MARSDEN DAVID [GB], et al
- [A] US 4933912 A 19900612 - GALLAGHER JOSEPH G [US]
- See references of WO 9926085A1
Designated contracting state (EPC)
DK GB
DOCDB simple family (publication)
WO 9926085 A1 19990527; AU 8399498 A 19990607; CA 2304242 A1 19990527; CN 1278923 A 20010103; EG 21573 A 20011231; EP 1046064 A1 20001025; EP 1046064 A4 20080514; NO 20002117 D0 20000426; NO 20002117 L 20000512; NO 20131517 L 19990517; NO 20150486 L 19990517; NO 20161236 A1 19990517; NO 20161237 A1 19990517; NO 334225 B1 20140113; NO 336834 B1 20151116; NO 339177 B1 20161114; NO 341895 B1 20180212; NO 341925 B1 20180219; NZ 504658 A 20020201; RU 2192658 C2 20021110; US 6026059 A 20000215
DOCDB simple family (application)
US 9814478 W 19980713; AU 8399498 A 19980713; CA 2304242 A 19980713; CN 98811151 A 19980713; EG 118298 A 19980930; EP 98934484 A 19980713; NO 20002117 A 20000426; NO 20131517 A 20131115; NO 20150486 A 20150422; NO 20161236 A 20160727; NO 20161237 A 20160727; NZ 50465898 A 19980713; RU 2000108472 A 19980713; US 97067497 A 19971114